8GB KIT (2 x 4GB) for Asus cm Desktop Series CM1740 CM1831 CM6630 CM6731 CM6870. DIMM DDR3 Non-ECC PC3-12800 1600MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
OFFTEK 8GB Replacement Memory RAM Upgrade for Asus CM6870 (DDR3-12800 - Non-ECC) Desktop Memory at Amazon.com
How to Upgrade RAM Memory On Your ASUS CM6870 Desktop PC and Run BIOS Upgrade - iFixit Repair Guide
Memory RAM Upgrade for Asus Essentio CM6870 4GB/8GB DDR3 DIMM | eBay
Specs ASUS CM 6870-IT010S i7-3770 Desktop Intel® Core™ i7 8 GB DDR3-SDRAM 1000 GB HDD Windows 8 PC Black PCs/Workstations (CM6870-IT010S)
How to Upgrade RAM Memory On Your ASUS CM6870 Desktop PC and Run BIOS Upgrade - iFixit Repair Guide